51071086800571 has 2 divisors, whose sum is σ = 51071086800572. Its totient is φ = 51071086800570.

The previous prime is 51071086800557. The next prime is 51071086800593. The reversal of 51071086800571 is 17500868017015.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51071086800571 - 2⁴³ = 42274993778363 is a prime.

It is a super-2 number, since 2×51071086800571² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51071086800871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25535543400285 + 25535543400286.

It is an arithmetic number, because the mean of its divisors is an integer number (25535543400286).

Almost surely, 2^{51071086800571} is an apocalyptic number.

51071086800571 is a deficient number, since it is larger than the sum of its proper divisors (1).

51071086800571 is an equidigital number, since it uses as much as digits as its factorization.

51071086800571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 470400, while the sum is 49.

The spelling of 51071086800571 in words is "fifty-one trillion, seventy-one billion, eighty-six million, eight hundred thousand, five hundred seventy-one".